Answer:
who knows what your saying
Answer:
16π
Step-by-step explanation:
Area = πr²
r - radius
r = d/2 = 8/2 =4
Area = 4²π = 16π
Answer:
3 in 7 out 8 in 12 out 9 in 13 out
Step-by-step explanation:
Just add 3 that's the rule
Answer:

Step-by-step explanation:
#Using the method of substitution and replacement of unknown values.
Given that

Express eqtn (ii) in terms of x

Replacing for x in eqtn (i)

Substitute y value in eqtn(ii) to obtain x

Answer:
142
Step-by-step explanation:
60+70=130
8+4=12
130+12=142